Machine for dressing staves



UNITED STATEs PATENT oEEioE.n

JOSEPH D. ELLIOT. OF LEICESTER, MASSACHUSETTS.

mIVLACI-IIBTE FOR DRESSING STAVES.

Specification of Letters Patent No. 10,227, dated November 15, 1853.

T0 all whom t may concern.'

Be it known that I, JOSEPH D. ELLIOT, of Leicester, in the county ofWorcester and State of Massachusetts, have invented certain new anduseful Improvements in Machines for Dressing Staves; and I do herebydeclare the following to be a full, clear, and exact description of thesame, reference being had to the accompanying drawings, making a partthereof, in which- Figure 1, represents a perspective view of themachine. Fig. 2, represents a transverse section through the bed.

The nature of my invention relates more particularly to the use of atransversely inclined bed upon which the staves are fed into thecutters, so as to adapt the machine to the dressing, of thick or thin,tapering or wedge shaped, riven staves, with the grain of the wood,without separately adjusting the machine, or assorting of the staves.

To enable others skilled in the art to make and use my invention, I willproceed to describe the same with reference to the drawings.

The general construction of the machine is similar to that which I haverecently W withdrawn from the Patent Oiice, the distinguishingdifference being in the bed.

A, represents the table or bench, to which a standard B, is attached.From said standard B, projects overvthe table an arm O, for supportingin an inclined position the shaft D, carrying the cutter wheel E, at itslower end, and a drum or pulley F, at its upper end, for a belt, bywhich it may be driven. This cutter wheel E dresses the concave side ofthe stave, and may be made adjustable through its shaft. A. weightedroller G, is placed as near to the cutting line of the wheel E, as maybe, the wheel itself being hung on an inclined shaft for this purpose,to hold the stave against the bed H, and against the lifting cut of thewheel. This roller may be weighted, hung upon springs, or may possessthe requisite weight within itself for holding d'own the stave.

Underneath the bed is a concave cylinder I, having straight knivesarranged transversely across it, which knives dress the convex side ofthe stave. The bolt or stave is held against the action of the undercutter by a swiveled weighted roller J, on top of the table, whichroller may be held down by weights, springs &c., in the well knownmanner.

K, is a transversely inclined or slightly concave bed, which may haveits surface slightly grooved or roughened, so that the stave shall notslip to one side or the other of the bed, after it has been properlyplaced thereon--the swiveled roller -J aiding to hold it (the stave)firmly against the bed.

The staves are fed in between the guide pieces L, by means of an endlesschain of dogs or bars, which being common and well known need not beshown. Or other positive feed motion may be used if found essential.

It is well known that staves are riven from the bolts in radial linesdrawn from the center to the circumference of the bolt, or log, and thatthe stave when undressed is consequently thicker at one edge than theother. They may also taper in the direction of their length, and bewinding from end to end. By machines heretofore constructed for dressingsuch riven staves, the staves had to be assorted into sizes and thecutters adjusted for each varying size. In my machine, if the stave bethick it is fed in on the side a, of the bed. If thin on the side b ofthe bed. If thick at one end and t-hin at the other, it is skewed on thebed so that the thick part shall pass through at a, and the Y thin partat b, thus adapting the machine to staves of any form as they come inbulk; dressing them with the grain; and by this arrangement of inclinedbed, and swiveled roller, which must adapt itself to the various shapesor forms of the staves, and the manner of feeding them in, I can take afull shaving from convex or outside of the stave, while the deficiencyof wood will be on the inside of the barrel when made up, and the grainof the wood is not cut across, which would allow the barrels to leak.

Having thus fully described the nature of or inclined, from edge toedge, Without any my invention, what I claim therein es new, Separateadjustment for the various sizes, l0 and desire 0 secure by LettersPatent, is* l substantially as described.

The com ination of the transversely in- 5 dined bed with the swiveledroller, for the J' D' ELLIOT purpose of adapt-ing the machine to theTitnesses: dressing of riven Steves with the grain of A. B. STOUGHTON,the Wood, Whether thick or thin, tapering, L. C. DORNE.

